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  1. tx <- "I want: spaces around all these marks;:!?.but i didn’t want it there in didn't"
  2. gsub("\\s*(\\.+|[[:punct:]])(?<!\\b['’]\\b)\\s*", " \\1 ", tx, perl=TRUE)
Success #stdin #stdout 0.25s 39260KB
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[1] "I want : spaces around all these marks ;  :  !  ?  . but i didn’t want it there in didn't"
https://ideone.com/t6xiz9
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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